How do I create a journal entry for the sale of a fixed asset (vehicle) with a loan liability paid off by dealership?

I am having trouble figuring out how to complete the necessary journal entries to record the sale of a fixed asset (vehicle) that's outstanding loan was paid by the dealership, but had negative equity. I understand how to remove the asset/accumulated depreciation accounts, but from there I am lost.

Down Payment (the tricky part for me): Old Vehicle Trade in Value: $9500 Less old vehicle payoff: $15,259 Equals Net Trade In: -$5759 Plus Cash Down Payment: $3,000 leaves $-2,759 which was added to the purchase price of the new vehicle.

I believe I am then supposed to create a "current liability account" named "asset sale deposit" to show the $15,259 paid by the dealership to close my old loan, but I do not know to show the Debits and Credits for this entry, or how to close the old loan, show the new vehicle and the new loan,

Greatly appreciate anyone that can walk me through the journal entries in order...